So far from what I played, Moon is a great FPS with loads of action and game play to keep you entertained for hours. The controls are great and sound is pretty good.
The one thing that takes me out of this possibly wonderful FPS is that the graphics are too pixelated for my tastes. It sucks to say that the graphics are the only thing holding me back from play this game more than the 3 hours I have played so far. If the game play is fun and the controls are good, then graphics shouldn’t matter right? For me, a FPS should have decent graphics so I can see a little more detail of what I am shooting at or exploring. It takes the fun out of an FPS for me.
I am not telling you not to try this game out on the DS, I want you to. It has potential to be a great FPS for a handheld. I would recommend at least renting it to see if the graphics bother you in Moon.
